This was on my 5th wheel when I had my Mazda 6. I mainly used it for track events and you can see that it's chunked a bit. The other 4 tires were swapped onto my Subaru wheels in early 08 and I just finished wearing them out on the street mainly. So the tread depth on this tire is pretty close to brand new. I believe I did two days at Lime Rock with this and two days at NHIS. Could have been less as I rotated the tire with the least wear to the front outside position.
$25.